Read the given passage carefully and answer the questions given below:
A group of students visited a coastal village to observe the movement of air at different times of the day. In the afternoon, they noticed that air was moving from the sea towards the land. The land felt warmer than the nearby sea. They also observed that the air above the warmer land was rising while comparatively cooler air from the sea moved towards the land.
After sunset, the students noticed that the direction of air movement had changed. The land had become comparatively cooler than the sea, and air was moving from the land towards the sea.
1. Why did the air above the land rise during the afternoon? -
2. Which condition was responsible for the movement of air from sea to land? -
3. What type of breeze was observed after sunset? -
4. Which observation from the case shows that convection is involved? -